Viral myositis is a rare disease that causes muscle weakness, tenderness, and pain after a viral illness.
Myositis refers to any condition causing inflammation in muscles. Weakness, swelling, and pain are the most common myositis symptoms. Myositis causes include infection, injury, autoimmune conditions, and drug side effects. Treatment of myositis varies according to the cause.
Causes of Myositis
Myositis is caused by any condition that leads to inflammation in the muscles. Myositis causes can be divided into several categories:
Inflammatory conditions.Conditions causing inflammation throughout the body may affect the muscles, causing myositis. Many of these causes are autoimmune conditions, in which the body attacks its own tissues.
Inflammatory conditions causing potentially severe myositis include
Dermatomyositis
Polymyositis
Inclusion body myositis
Other inflammatory conditions tend to cause milder forms of myositis, including
Lupus
Scleroderma
Rheumatoid arthritis
Inflammatory conditions are often the most serious myositis causes, requiring long-term treatment.
Viral Myositis usually a byproduct of improper management or left untreated viral infections mostly Influenza A or B sometimes by other viral infective pathologies such as pox infection, HIV etc.,
Viral Myositis characterized by
Sudden onset of symptoms
Muscle pain and tenderness in both sides of the body
Symptoms that appear within 1–14 days after a viral infection
Elevated muscle enzyme levels
Laboratory evidence of a viral infection
Viral myositis is most commonly caused by influenza A or B, but can also be caused by HIV and enteroviral infections.
It usually affects children, and symptoms are often limited to the calf muscles.
Viral myositis is typically self-limiting and resolves within several days in most of the cases. Only on few it may remains and gradually leads to complications with or without Bad postures.
It can be managed with pain relief, hydration, and regular follow-up. However, it can lead to complications like rhabdomyolysis, which can cause extensive muscle damage and kidney failure.
Seek medical advice if your child has viral myositis features and
Their symptoms worsen
They have a high fever
The muscle pain, swelling, or weakness worsens or spreads to a new area of the body
They have joint swelling
They have signs of dehydration
Go to the emergency department if your child has viral myositis and
They have severe muscle pain and tenderness
They are unable to walk
They refuse to drink or seem too sick to drink enough
They have dark, red, or brown urine
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A light on Practice of Medicine (The information provided is for informational and educational purposes only and should not be considered professional advice)
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